Auxiliary air attachment.



H. A. MILLER. AUXILIARY Am ATTACHMENT. APPLICATION FILED 11011.14, 1910.

1 ,036,302. Patented Aug. 20, 1912.

L. l* l/// Eff HARRY A. MILLER, OF LOS ANGELES, CALIFORNIA.

AUXILIARY AIR ATTACHMENT.

Specication of Letters Patent. i

Patented Aug. 20, 1912.

Application filed November 14, 1910. Serial No. 592,354.

To all whom it 'may concern.'

Be it known that I, HARRY A. MILLER. a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Auxiliary Air Attachment, ot which the following is a specification.

This invention relates to an auxiliary air attachment, and consists of an attachment adapted to be inserted in the induction pipe at any point between the throttle valve an'l the cylinders, the attachment being designed for adlnitting air to the mixture after the mixture has passed from the carbureter and beyond the throttle.

The device may be placed at any point desired between the throttle and the cylinders. although it may be conveniently connected to the upper part of the carbureter at a point beyond the throttle.

The main object of the invention is to provide means whereby air may be admitted uniformly from all sides into the mixture after the mixture has passed the throttle valve, whereby the air thus admitted is more thoroughly mixed with the mixture than if such air were admitted from one side only.

A further advantage of admitting air at a point beyond the throttle valve is that the vacuum at such point is much greater than in the earbureter at a point below the throttle. Therefore, the air more easily enters when introduced above the throttle, and a greater amount thereof may be introduced than below the throttle.

A further object is to deflect air externally of the device so that the direction of the air will be changed and it will the more readily enter through the device into the interior of the induction pipe.

By regulating the amount of auxiliary air thus admitted, the suction on the gasolene, nozzle may be increased or diminished as desired to produce the required richness of mixture. Thus at high speeds should the suction become too great and pick up more gasolene than needed, the device may be opened to admit more auxiliary air and thereby reducethe suction at the nozzle and diminish the amount of gasolene introduced, or vice versa if a rich mixture is required, the device may`be closed to prevent the entrance. of auxiliary air and thereby increase the suction at the nozzle, resulting in a considerably richer mixture.

Referring to the drawings Figure 1 is a side view of a carbureter, the upper portion of which is partly in section, with t-he device forming the present invention arranged in the induction pipe between the throttle and cylinder. Fig. 2 is a perspective view of the device in detail. Fig. 3 is a plan view of the device partly in section. lfig. 4 is a horizontal sect-ion, enlarged, on line r4-.fc4 Fig. 1. Fig. 5 is a view similar to Fig. 4, showing the valve closed. Fig. 6 is a section on line 6-6 Fig. 4.

The device comprises a sleeve 1 halving a series of ports 2. Revoluble on the sleeve 1 is a valve 3 having a series of ports 4 adapted to register with the ports 2. A curved flange 5 forming an external deflector is carried on the valve and serves to deflect the air externally ofy the device and cause it to enter in greater volume.

The valve 3 may easily `be turned on the sleeve 1 to adjust the size of the openings through the ports 2 and 4. Thus, as shown in Fig. 4, the valve 3 is so turned that. the ports 2, 4 are fully opened, while in Fig. 5 it is shown adjusted so that the ports are closed entirely. Any intermediate position may he obtained by adjusting the valve to the desired position. The valve 3 may be provided with an ear 6 for the attachment of a rod 7 for adjusting the valve, if desired. ln order to assemble the valve 3 on the sleeve, the sleeve is made in two parts, as indicated in Figs. 2 and 3, the two parts being secured together by screws 8. The sleeve 1 is provided at each end with a flange 9, by means of which it may be attached in position.

Fig. 1 shows one method of attaching the device. 10 designates the carbureter, which may be of any desired form, for example, such as shown in a former application of mine filed November 16th, 1909, Serial No. 528,400, the upper portion of which has been broken away to reveal the throttle valve 11. In this view I have shown the device as attached directly to the up )er end of the carbureter, the flange 9 of tie device being secured to the upper flange 12 of the carbureter but at a point above the throttle, as readily seen.

13 designates the induction pipe attached to the upper part of the device and leading to the engine 14. It should be understood that the device need not necessarily be secured directly to the carbureter, as herein shown, but may be placed at any point desired between the engine and the throttle valve. Y

What I claim is An air valve adapted to be placed in the passage between a carbureter and an engine, comprising a sleeve having a series of segmental ports, e said sleeve being externally grooved, a split sleeve fitting in said gro-ove and having segmental ports adapted to register wit-hvthe first named ports, said latter sleeve having a curved flange, the upper end of which merges with said ports, the lower edge of said flange being substantially on a line with the lower edges of the ports in the first sleeve.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 7 th day of November 1910.

HARRY A. MILLER.

In presence of- G. T. HACKLY, F. A. CRANDALL. 

